Metallic covering for doors.



No. 877,922. PATENTED FEB. 4, 1908.

E. B. GAGER. METALLIC COVERING FOR DOORS.

APPLIOATION FILED MAY 8,1907.

WITNESSES: Edwin B. @agemNVENToR.

I ATTORNEY.

UNITED STATES PATENT OFFICE.

,EDWIN B. GAGE-R, or COLUMBUS, OHIO, ASSIGNOR TO THE KINNEAR ANDMANUFACTURING COMPANY, A CORPORATION or OHIO.

caste ,m'rnmc covnanre iron noons Specification of Letters Patent.Application filed May B- 1907- Serial 110. 872.670,

Patented Feb. 4, 1908.

To all whom alt-may concern:

Be it known that EDWIN RGAGER, a citizen of the United States, residingat C- lumbus, in the county of Franklin and State the seam formed in881118 1118111161 8.8 Shown in of Ohio, has invented certain new anduseful Improvements in Metallic Covering for Doors, of which thefollowing is a specification.

My invention relates to improvements in metallic coverings for doors,and contemplates especially the a plication of a metalic sheathinprefera ly to a frame door, whereby the latter is rendered, to a greatdegree, proof against fire.

It further contemplates a provision for the use of nails or screws insecurin ing, at its seams, to the woo en structure, whereupon the saidseams are closed so that said nails or metallic binders are completelyconcealed by the overlapping portions where said seam is formed.

With these and other objects in view which will be more definitelyhereinafter set forth, I have shown one embodiment of my invention inthe drawings, in which Figure 1 is a perspective of a door having myimproved metallic covering applied thereto; Fig. 2 is a section alongthe line BB of Fig. 1; Fig. 3 is a section along the line 'CC of Fig. 1,through the side stile; Fig. 4 is asection along the line A-A of Fi 1,through the side stile and the cross sti e.

Referring to the drawings, 1 and 2 are the side stiles of a door, 3 and4 are the end stiles, and cross stiles are indicated at 5; the panelslie between the cross stiles and are designated as 6., It will beunderstood that the door as shown in elevation in Fig. 1 has themetallic covering applied thereto, but I have used the referencenumerals above, not to designate the covering, but the various parts ofthe door indicated.

Referring to Fig. 3, 7 and 8 and 9 indicate the courses of wood formingthe. side-stile 1, the metallic covering extending over the end thereofat 12, and alon thesldes thereof at 13 and 14; at the end 0%the sidestiles, as indicated at 30, the metal covering the sides and the end isoverlapped and united in the Fig, 4, for the joining of the metalliccovering for the side stile and. the cross stile, indicated on Fig. 1along the line AA. Therefore a description of Fig. 4 will also'show howsaid sheath-- the seam at '30 is formed, and consequently attention isnow directed to Fig. 4.

'31 represents the wooden frame-work, and 5 and 13 representrespectively the'metallic covering for the cross stile and the sidestile; the metallic covering 13 is bent at an angle inwardly and thenfolded as shown at 15, the cover 5 be' bent at an angle and folded inthe opposite irection as shown at 16. A. clasp member 17 is provided,having the hook portions 18 and 19, the hook portions being adapted toreceive the folded portions of the metallic covers 5 and 13.

When the hook and folded portions are en-,

en, somewhat as appears at24 in Fig. 3. ile they are in the openposition, a nail 20 is driven through the body portion of the claspmember 17 into the wooden frame, and when this'member is thus securelpositioned, a stamp or die may be applie to the coverings 5 and 13 topress the parts into a close union, whereupon the hook portions of theclasp member and the folded portions of the covering curely lockedtogether, forming a seam which efi'ectually covers and conceals the head21 of the nail. As stated, this form of lock seam is used at theopposite ends of the side stiles, and also at the junctions of the crossstiles and the side stiles. Theclasp member 17 is inserted between thepanels on the face of the door, where the coverings for side and crossstiles are found, as well as at the other points mentioned, and itslength is determined by the length of the seam to be thus formed.Another form of scam is also used in securing the metallic covering inplace upon the door, which is illustrated at 27, 28 and 29, the mannerof forming such seam and of positioning the nail, being shown in Fig. 3at 24.

Referring to Fig. 3, the metallic covering gaged, they are 0 members arese-.

1'4 for the side stile is seen to be bent at a 'A die or press is thenapplied to the outpositioned, and I the nails are standing metallicportion 24, and said portion and the embracing portion 23 are pressedinwardly and .the latter, thereby is made to form a hook embracing theportion 5 24, thus forming a secure locking seamand also coverin andcompletely concealing the nail. It wi appear, therefore, that two formsof lockseams are used in securing the metallic covering upon the woodendoor, one 10 uniting the panels to the stile portlons, and

pletely concealed.- The cross stile coverings 25 are then positioned andsecured to the side stile coverings in the manner hereinbeforedescribed; the panel coverings, which are each formed (integrally), andwithout open or exposed miters, are then positioned, the

nails driven into place, and a die or press is then applied to theseams, forcing them into locked engagement and concealing the nails. Theapplication of the die or press to the parts to form the locked seams,may be made" to the door covering 1n sections, or it may be applied atone operation to one complete face 17 ereof, so that one application toeach face and one to each end, which might take place at one operation,would effect the formation of all the locking seams necessary, with theresult that the door is completely covered by a metallic sheathing,which discloses only a trace of the meeting points of the various piecesof metal.

When a door provided with my metallic covering is attacked by fire, thewood core may be charred by the intense heat, but the metallic covering,bound together by the look seams and the nails, will retain its form 59and effectually arrest the progress of the flames. The nails thereforeperform the double function of securing the metallic covering to thewood core, and when the latter has become charred, of holding -togetherthe 5 5 sections of the metal, which might otherwise be disengaged atthe seams by the heat.

I desire to call attention particularly to the manner in which thesections of the coverings are positioned; it will be noted that. 60there are four seams disposed around the door transversely thereof, eachof which will permit some expansion or contraction, where y the coveringmay adjust itself to the door under varied conditions. Around the doorlongitudinally thereof there .are disposed a' plurality-of seams unitingthe sections of the metal, which will pernut expansion and contractionof the covering upwardly and downwardly of the door. his distribution'of a plurality of seams binding the sections of the metal coveringstogether both transversely and longitudinally on both sides of the doorprovides a construction which is, to some extent, flexible, andtherefore very well adapted to the various and changing conditions underwhich the door may be used. It will be noted further that in forming thecovering I distribute the metal insuch a manner as to prevent bucklingor cufpping thereof,

whereby a smooth even sur presented.

I claim:

1. A door com rising a combustible core including side sti esand panels,a metallic covering for said door com rising a covering for each sidestile formed of a single strip embracing both sides thereof and theends, and being united at its ends by means of a conace 1s always cealedlap joint, a covering for each end stileformed of a single sheet andsecured at its edges to said side stile coverings by means of concealedla "joints, a covering for each side of each panei: a covering for eachside of each cross stile, said end stile coverings being joined at theirends to the panel coverings on opposite sides of said door, said crossstile coverings being secured at their ends to said side stilecoverings, and being secured at their sides to said panel coverings, allof said connections being made'by means of overlapping the ends of saidcoverings, and inserting a nail therethrough and pressing the outerportions of said overlapping portions into position to concealsaid nail.

2. A metallic covering for combustible doors comprising a covering foreach side stile formed of a single sheet of metal ada ted to embracesaid side stile, a covering For each end stile comprising a single sheetof metal adapted to embrace said end stile, a

.covering for each side of each cross stile and a panel covering havingits edge ortions reversely curved to form overlying oops, a single loopformed on said cross stile covering adapted to embrace the lower loopformed on said panel covering, a nail driven through said cross stileand panel coverings and adapted to secure the same together and havingits head positioned in 'the lower loop formed on said panel coverin theupper loop inclosin the end portion 0% the loop formed on said pressedinwardly to cover said nai head and to form a concealed joint;

3. A metallic covering for combustible doors comprising a covering'foreach side stile formed of a single sheet of metal ada ted to embracesaid side stile, a covering for each end stile comprising a single sheetof metal adapted to embrace said end stile, a

cross stile covering and being adapted to be formed by reversely curvingthe edge por stile covering, a nail adapted to be inserted through saidcover ngs into said combustible core and having its head positioned inthe said lower loop, the said upper loop adapted 15 to be then pressedinto engagement with said nail to conceal the same, the joint thusformed being practically concealed.

In testimony whereof I affix my signature in the presence of twowitnesses.

EDWIN B. GAGER.

covering for each side of each cross stile, a covering for each side ofeach panel united at its ends to said side stile coverings and at itssides to said cross stile coverings by a joint tions of said panelcovering to form two loops thereon lying one above the other, a singleloop formed upon said side stile or cross stile covering and adapted toembrace the lower on said panel covering and to l00(p lie with its lVVitn esses: en in the upper loop formed on said cross GEO. W.RIGHTMIRE, A. D. BIERMAN.

